[Event "Olympiad-17 Preliminaries B"]
[Site "Havana"]
[Date "1966.10.26"]
[Round "1"]
[White "Tsagan, T"]
[Black "Araiza Vazquez, Jose Joaquin"]
[Result "1-0"]

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Qe7 5. d4 Bb6 6. O-O Nf6 7. a4 a6 8. Re1 d6 9. h3 Bd7 10. d5 Nd8 11. Bd3 h6 12. Be3 Bxe3 13. Rxe3 Nh5 14. c4 Nf4 15. Bf1 g5 16. Kh2 g4 17. g3 Ng6 18. Ne1 h5 19. h4 f5 20. exf5 Bxf5 21. Ng2 O-O 22. Nc3 Nf7 23. Bd3 Nh6 24. b4 Kg7 25. Ra2 Bxd3 26. Rxd3 Nf5 27. Ne4 Nd4 28. Ng5 Rf6 29. c5 Re8 30. cxd6 cxd6 31. Rc3 Qf8 32. Qd2 Nf3+ 33. Nxf3 gxf3 34. Ne3 e4 35. Rac2 Ne5 36. Rc7+ Re7 37. Rxe7+ Qxe7 38. Qc1 Nd3 39. Rc7 Nxc1 40. Rxe7+ Rf7 41. Nf5+ Kf6 42. Rxf7+ Kxf7 43. Nxd6+ Ke7 44. Nxe4 Ne2 45. d6+ Ke6 46. a5 Nd4 47. Nc5+ Kxd6 48. Nxb7+ Kc6 49. Nc5 Kb5 50. Nxa6 Kxa6 51. g4 hxg4 52. Kg3 Nf5+ 53. Kxg4 Ne3+ 54. Kxf3 Nd5 55. h5 Nxb4 56. h6 Nd3 57. h7 Ne5+ 58. Ke4 Nf7 59. Kf5 1-0